Statistical Fatigue Crack Propagation of a Superalloy Under a Block Type Spectrum Loading at Elevated Temperature
A lognormal statistical model was developed for the prediction of crack growth damage accumulations of superalloys under a block type spectrum loading at elevated temperature. Both the...
Fatigue Design and Reliability Analysis of CFRP Composites
The statistical fatigue properties of unidirectional (UD) T800/3631 carbon/epoxy composite laminates are investigated in this paper. Fatigue tests were conducted under rotating bending....
Fatigue Reliability and Remaining Fatigue Life of Existing Steel Rail-Road Bridges
This paper presents a fatigue reliability model for the reliability-based evaluation of remaining fatigue life of existing rail-road bridges. It is demonstrated that the simple fatigue...
Fatigue Test Using Multi-Notched Specimen and its Reliability Analysis
This paper presents a fatigue testing method using a multi-notched test specimen for the purpose of estimating the distribution function of fatigue crack initiation life by a small number...
Reliability Study of Ferrocement Slabs Under Cyclic Loading
A simple probabilistic approach to fatigue strength studies for ferrocement slabs is presented: A preliminary experimental program to obtain the relevant statistics was conducted and the...
Optimum Studies of Coefficient Variation of UBC Seismic Forces
This paper presents an optimization algorithm for finding optimal parameters of a nondeterministic structure subjected to UBC seismic load for both normal and lognormal distribution models....
Background Studies for the Determination of Strength Functions in Eurocode 3?Design Rules for Steel-Structures
At present common unified rules for the design of Civil engineering structures are being prepared on the initiative of the Commission of the European Communities. Eurcode 3, which gives...
Reliability of Steel Columns Subjected to Buckling?Comparison of International Standard Codes of Design
Standard codes of design represent the phenomenon of buckling by means of a curve taking into account random structural imperfections. The author suggests a probabilistic method to evaluate...
The Effect of Repeated Inspections on the Reliability Degradation Due to Fatigue Crack Growth
The effect of repeated in-service inspections on the reliability degradation due to fatigue crack growth is investigated based upon a stochastic fracture mechanics. A method to evaluate...
Parameter Identification and State Estimation of Structure Models in Shaking Table Test
In this paper physical parameters and inner states of structure can be estimated from the input and responses in shaking table test by means of Extended Kalman Filter (SIEKA). Comparing...
Reliability-Based Bridge Life Assessment
Fatigue considerations have usually entered design codes as a secondary consideration and often under the guise of serviceability limits. Most engineers felt if the maximum stress ranges...
Development of a Safety Assessment System for Steel Bridge Erection Work
In order to secure safe execution of steel bridge erection work, development of a comprehensive checking system to set up safety countermeasures at the stage of construction planning prior...
Redundancy Evaluation of Steel Girder Bridges
The focus of this paper is on the use of redundancy measures in the evaluation of bridge systems. The emphasis is on the definition of system redundancy measures suitable for use by bridge...
Seismic Reliability Analysis for Elevated Pressure Vessels
This paper presents two approaches for assessing the seismic reliability of elevated pressure vessels. A discretized mass mechanical system is used to model the dynamic effects of liquid...
Recent Seismic Risk Studies of Nuclear Power Plants: An Overview
Seismic probabilistic risk assessments (PRA) are conducted to estimate the frequencies of occurrence of severe core damage, serious radiological releases, and consequences in terms of...
Effect of the Uncertainty About the Fatigue Limit on Highway Bridge Reliability
Current fatigue design specifications for welded steel highway bridges subjected to high traffic volumes require the design to be capable of resisting high-cycle, long life conditions...
Reliability Assessment and Reliability-Based Rating of Existing Road Bridges
A practical reliability model for the safety assessment and rating of existing R.C. bridges are developed by explicitly incorporating the degree of deterioration and damages based on available...
Reliability and Redundancy Assessment of Prestressed Truss Bridges
Methods for the assessment of the reliability and redundancy of post-tensioned trusses are suggested. The effect of tendon layout on the reliability and redundancy of post-tensioned trusses...
Vibration Tests and Damage Detection of P/C Bridges
A three-span countryside P/C bridge has been found to have excessive deflections in two of the three spans. It is reported that the prestresses in tendons of two girders of different spans...
Prestressed Concrete Pipe Field Test
Strain changes in the prestressing wires and deflections of a 2130-mm-diameter precast (embedded cylinder), prestressed concrete pipe were measured during earth backfilling operations....
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